74results about How to "Easy maintenance and repair" patented technology

The invention discloses a dynamics comprehensive test bed for a half-unfolding gas bomb with a long tilting rotor wing, comprising a wing, a tilting driving mechanism, a tilting rotor wing nacelle and a power-driven system, wherein the power-driven system is arranged at one end of the wing, the other end of the wing is connected with the tilting driving mechanism, and the tilting driving mechanism is also connected with the tilting rotor wing nacelle and drives the tilting rotor wing nacelle to rotate. By using the structure, the deficiency in test means in research filed of tilting rotor wing gas bomb dynamics problems in China is solved, and the invention provides the test bed capable of researching the stability, tilting transition state dynamic test and vibration control of the tilting rotor craft, which can be used for checking theoretical analysis results.

The invention discloses a shift selection and changing operation mechanism for a heavy-duty gearbox. The invention has the technical scheme that: the shift selection and changing operation mechanism, in which a self-locking mechanism, an interlocking mechanism, a reverse gear lock mechanism and a locking mechanism are integrated on a small cover shell assembly, for the heavy-duty gearbox can perform mechanical shift selection and shift changing, and can control the switching of a shift 2 secondary box so as to operate a shift 12 gearbox. The mechanism has a compact integral structure, is portable, can be post-maintained conveniently, and can effectively prevent the misoperation and increase safe reliability.

A collection mechanism for a side loading refuse collection vehicle that can move both horizontally and vertically to service multiple compartments designed for specific types of refuse or recyclables. A grabber assembly can move horizontally on a rail in either a lowered position or in a raised dumping position. The grabber assembly can move vertically on a mast. Preferably a sprocket wheel and a track are utilized to move the grabber assembly vertically from a street position to a dumping position.

The invention discloses a light partition wall with integrated wiring. The top ends and the bottom ends of light partition wall boards are suspended, force is borne through the side walls of square steel tubes of top end supports and bottom end supports, hollow channels are reserved in the middle parts of the square steel tubes, transverse centralized arrangement of cables is achieved through openable cable ducts, and it is avoided that a wall body is transversely grooved. By plugging vertical cable tubes into light partition wall vertical holes, it is avoided that the wall body is vertically grooved, complete integrated cable channels are formed while the light partition wall boards are installed in a nondestructive mode, and the two sides of a wall body share the wiring channels; besides, cable wiring efficiency is improved, and the wiring space is fully utilized. By adjusting the cables in the openable cable ducts and increasing or decreasing the number of the cables, nondestructive replacement and transformation for wiring in the partition wall can be achieved, various new demands brought by different function changes can be met, and the light partition wall with integrated wiring becomes a growable partition wall wiring system.

The invention provides a ring die pelleter which comprises a main shaft nesting structure, a box body, a driving tray, a ring die, a gear, a coupler and a main shaft safe locking structure. The main shaft nesting structure is adopted by the ring die pelleter, so that service life of a main shaft is prolonged, and the ring die pelleter not only facilitates late maintenance and repairing, but also saves cost. The main shaft safe locking structure is added, a double layer safe pin seat is utilized to fix the main shaft, so that the ring die pelleter effectively prevents strenuous vibration from generating and potential safety hazard from constituting due to rapid rotation of the main shaft, facilitates dismantling and late maintenance of the main shaft of the ring die pelleter, and greatly improves safety and practical applicability.

The invention relates to the technical field of drainage pipe network accessory devices, in particular to a steel pipe cutting device used in the maintenance process of a drainage pipe network. The steel pipe cutting device is convenient to maintain and repair, and a cutting wheel is convenient to adjust so as to reduce the use limitation. The steel pipe cutting device comprises a worktable, a connecting plate, a rotating plate, two sets of supporting rods, two sets of left fixing blocks, a right fixing block, a lower fixing block, a hydraulic cylinder, a left fixing plate, a right fixing plate, a left rotating shaft, a right rotating shaft, a threaded rod, a rotary table, an adjusting plate, a front connecting rod, a rear connecting rod, a fixing rod and a driving shaft, wherein two groups of left supporting legs are respectively arranged at the left front side and the left rear side of the bottom side wall of the worktable; two groups of right supporting legs are respectively arranged on the right front side and right rear side of the bottom side wall of the worktable; the worktable is provided with a transition hole; the connecting plates are connected with the two sets of leftsupporting legs and the two sets of right supporting legs; and the bottom ends of the two sets of supporting rods are respectively connected with the front half area and the back half area of the lefthalf area of the top side wall of the connecting plate.

The embodiment of the invention discloses an air compression vertical wind generating set. The air compression vertical wind generating set comprises a support frame, a main shaft arranged on the support frame, and a transmission for adjusting the rotation speed; the main shaft is perpendicular to the horizontal plane; a plurality of blades uniformly arranged in the circumferential direction of the main shaft; the blades are perpendicular to the horizontal plane; the blades are used for collecting wind energy so as to drive the main shaft to rotate, and thus mechanical energy is obtained; themain shaft is connected with the input end of the transmission; the output end of the transmission is connected with the input end of an air compressor; an air input port of an air storage tank communicates with an air output port of the air compressor; and the air storage tank is used for storing compressed air. The air compression vertical wind generating set adopts the mode that air is compressed, stored and reused for power generation, and can still generate electricity in the windless condition, breeze condition and hurricane condition, the power generation amount and time can be flexiblyadjusted, power generation is stable, and the air compression vertical wind generating set is simple in structure, low in manufacturing cost, easy to maintenance, light in weight of the blades and good in durability.

The invention discloses a self-cleaning high-temperature oil gas filter dust-removal process device and method. The device comprises a plurality of filter towers connected in parallel, wherein each filter tower comprises an upper seal head, a lower seal head and a plurality of tower filter groups which are perpendicularly stacked and the same; upper seal heads of which the side surfaces are provided with high-temperature oil gas connectors are arranged at the upper ends of the perpendicularly stacked tower filter groups; the lower seal heads provided with dust-containing exhaust connectors are arranged at the lower ends of the perpendicularly stacked tower filter groups; the upper ends of the filter towers are connected in parallel through the high-temperature oil gas connectors; the lower ends of the filter towers are connected in parallel through the dust-containing exhaust connectors; a filter group purified-gas connector is formed in each tower filter group; the filter tower groups are connected in parallel through the filter group purified-gas connectors. According to the invention, after the device adopts a tower structure, the process device with a reasonable height-diameter ratio can be designed; after the high-temperature pyrolysis oil gas treated by the self-cleaning high-temperature oil gas filter dust-removal process device and method is recovered, the solid content of coal tar is less than 0.5 mg/L, so that the technical requirements of coal tar deep-processing process are completely met.

The invention discloses an array type meat cutting and skewering device. The array type meat cutting and skewering device comprises a cutting bottom frame, a cutting pressing frame and cutting blades, wherein the bottom end of the cutting bottom frame is hinged to the top of the cutting pressing frame through a rotary shaft; needle threading holes are machined in edge frames on four sides of the cutting bottom frame; the cutting bottom frame is a rectangular framework which has an open upper end and is internally provided with a rectangular containing cavity; the cutting pressing frame is a rectangular framework which has an open lower end and is internally provided with a rectangular containing cavity; a plurality cutting blade fixing grooves are formed in the edge frames of the cutting bottom frames; and the rotary shaft is a damping rotary shaft. With the adoption of the technical scheme, a meat product is directly arranged in the containing cavity of the cutting bottom frame, and the quantity of the blades mounted on the cutting pressing frame and the distance between the blades are selected according to cutting requirements; the blades are finally limited by fixing a blade pressing sheet; then a user holds a handle and slowly presses the cutting blade; finally, the cutting is finished after the cutting bottom frame and the cutting pressing frame are completely closed; and the user opens the cutting pressing frame and skewers bamboo sticks into the needle threading holes of the cutting bottom frame to form skewered meat.

The invention discloses a U-shaped maglev rail transit beam, which is characterized by comprising an outer U-shaped beam body and a U-shaped or n-shaped rail support arranged in the beam body, the bottom of the rail support is connected with the bottom of the beam body into a whole; the height of the rail support is lower than that of the beam body, and the height of the beam body is flush with atrain floor; a mounting channel is arranged between the beam body and the rail support; two arms of the outer U-shaped beam body are two wing plates, and wing edges are arranged at the top ends of thewing plates. By the adoption of the scheme, aloft work is not needed when the magnetic levitation track beam is constructed, daily maintenance and overhaul are convenient, the emergency evacuation passage is arranged during double-line assembly, and compared with a traditional structure, the defects in the prior art are overcome, and the construction cost is reduced.

The invention discloses a cobweb type terrestrial heat supply device, and belongs to the field of terrestrial heat supply devices. In the scheme, hot water conveyed in a terrestrial heat pipeline is diffused to all positions of a building base plate through a cobweb type heat diffusion network; the cobweb type heat diffusion network formed by radiation cobwebs, diffusion branches and heat conduction fiber clusters uniformly transmits heat to the positions of the network, and meanwhile, the plurality of radiation cobwebs communicate with one another through the the diffusion branches, so that even if in the case of local breakage and other damages on the radiation cobwebs and the diffusion branches, heat can also be diffused and spread along with a network formed by the radiation cobwebs and the diffusion branches, the overall heating effect of the heating device is not affected even if in the case of local faults of the heating device, and meanwhile, a compartment structure formed by the heat conduction fiber clusters has a certain water storage function, and heating water which is not prone to leaking outwards permeates outwards rapidly, so that the maintenance cost and difficultyof the heating pipeline are greatly reduced.

The invention relates to an automobile collision emergency locking braking device. The device comprises a vehicle shell frame body, a vehicle body chassis, wheel structures and a collision device, wherein the vehicle body chassis is fixed on the bottom surface of the vehicle shell frame body; the wheel structures are all connected to the side faces of the four corners of the vehicle body chassis,the collision device is connected to the front end of the vehicle shell frame body, an engine compartment frame is arranged at the front end of the vehicle shell frame body, the collision energy-reducing plate is arranged at the front end of the bottom side of the engine compartment frame, and the collision device is connected to the front end of the collision energy-reducing plate. According to the invention, the arrangement of the automobile collision protection device is optimized; the mode and the method of the traditional automobile protection device are changed; the automatic wheel locking device is improved to be an automatic wheel locking device when an accident occurs. The protection is not influenced by electronic components of an automobile, only relates to a braking mode of automobile mechanical equipment, is convenient to repair and maintain after collision. A collision protection device which does not exist in the market at present is originally created, is relatively simple in structure, does not use any electronic equipment, a protection device fault caused by a circuit fault is avoided, and the device is suitable for popularization and application.

The invention relates to the technical field of large screen splicing, in particular to a three-dimensional adjusting device. The device comprises a fixed support and a movable support; the movable support is hung on a fixed adjusting support; the movable support or the fixed support is provided with an X-direction adjusting mechanism, a Y-direction adjusting mechanism and a Z-direction adjusting mechanism; the X-direction adjusting mechanism, the Y-direction adjusting mechanism and the Z-direction adjusting mechanism are connected with the fixed support or the movable support in an abutting-against manner and used for adjusting the position of the movable support relative to the fixed support; and the movable support is used for fixing display units, and the fixed adjusting support is used for being fixed to an external support or a wall. The position of the movable support relative to the fixed support is adjusted by an installation person through the X-direction adjusting mechanism, the Y-direction adjusting mechanism and the Z-direction adjusting mechanism, and therefore the multiple display units are correspondingly arranged in order. The movable support is hung on the fixed support, and the X-direction adjusting mechanism, the Y-direction adjusting mechanism and the Z-direction adjusting mechanism are connected with the fixed support or the movable support in the abutting-against manner, so that convenience is brought to repairing and maintenance in the later period.

The invention discloses a mechanical sealing testing device and method for experimental teaching, and belongs to the technical field of sealing testing. The mechanical sealing testing device comprisesa rack, a computer, a motor, a torque rotating speed measuring instrument, a bearing pedestal, a transmission shaft, a sealing cavity, an oil tank, a bidirectional hydraulic pump and a pipeline; thecomputer, the motor, the torque rotating speed measuring instrument, the bearing pedestal, the transmission shaft and the sealing cavity are mounted on the rack; the motor, the torque rotating speed measuring instrument and the transmission shaft are connected in sequence; the transmission shaft is connected with the sealing cavity through a cotter pin and a convex key; the opening position is connected with an oil inlet and an oil outlet of the sealing cavity through the pipeline; the rack is further provided with the bidirectional hydraulic pump and the oil tank; and the oil tank, the bidirectional hydraulic pump and the sealing cavity are sequentially connected into a loop through the pipelines. The sealing performance of the testing device is improved, the dismounting convenience of the device in the sealing cavity is improved, the replaceable design is realized, and the experimental test can be performed for more mechanical sealing devices.

The invention discloses a multifunctional three-dimensional pillow with a function of sleep quality improvement. The bottom of a base is provided with a plurality of device installation grooves, a cover plate is mounted on an opening of each device installation groove, the base around the device installation grooves is provided with a plurality of blind holes, the base around openings of the blind holes is provided with a plurality of horizontal anti-rotation grooves, and the base at the ends of the anti-rotation grooves is provided with vertical cylindrical grooves. A screw sleeve is arranged in each blind hole and comprises a sleeve tube, and a plurality of transverse rods are arranged around the upper end of each sleeve tube and matched with the anti-rotation grooves. A plurality of cylindrical blocks are arranged at the end of each transverse rod and matched with the cylindrical grooves, each cover plate is provided with a plurality of through holes peripherally, and screws penetrate the through holes to be fittingly connected with the sleeve tubes. The cover plates at the bottom of the pillow can be conveniently mounted and demounted and are matched with the base through the screws, the sleeve tubes arranged on the base are in hard structures and can be steadily matched with the screws, and the sleeve tubes cannot rotate relatively in a screw demounting process, so that stability is improved, and maintenance of devices in the pillow is facilitated.

The invention discloses a municipal domestic sewage treatment method. The method comprises the following steps: collecting domestic sewage to a sewage storage tank through a sewer pipe, discharging the domestic sewage stored to a certain water level to a filtering and mixing reactor, mixing and filtering the domestic sewage, discharging the filtered domestic sewage to a bioreactor, hydrolyzing and degrading the domestic sewage, allowing the hydrolyzed and degraded domestic sewage to flow to a precipitation tank, clarifying and filtering the hydrolyzed and degraded domestic sewage, disinfecting the clarified and filtered domestic sewage through an ultraviolet disinfection tank, and discharging the disinfected domestic sewage to a water discharge pipeline, a lake or a river. A small domestic sewage treatment system is built in a position nearby a living quarter, so the length of a domestic sewage laying pipeline and the complex degree of sewage pipelines are reduced, maintenance is convenient, and the fund is saved. The method has very good promotion and economy values.

The invention relates to an anticorrosive overvoltage protecting electric heating drainage device, including a device body system, a water inlet pipe system, a water outlet pipe system, a connecting tube system and a sewer pipe system. The invention is characterized in that the systems above adopting assembly structure are connected together in mechanical way. The internal walls of the device body system, the water inlet pipe system, the water outlet pipe system, connecting tube system and the sewer pipe system, as well as the contact parts of the systems contacting with sewage and coal gas adopt anticorrosive treatment. The method of the anticorrosive treatment is a chemical anticorrosive method of lining or coating, or a method combining chemical anticorrosion and electrochemical anticorrosion. Being capable of effectively solving the problems of corrosion and damager of the coal gas pipes caused by the drainage of various sewages of strong corrosion or coal gas medium, the invention has the advantages of simple fabrication and assembly and partial replacement.

The invention discloses an anti-winding self-cleaning crusher. The anti-winding self-cleaning crusher comprises circular-arc-shaped water passing grilles, driving components and a cutting component. The water passing grilles are arranged on the upstream face of a crusher body. The circle center of each water passing grille is further provided with a rotating tooth rake shaft. When making contact with the clearances of the corresponding arc-shaped water passing grille, rake teeth of each tooth rake shaft streak across the clearances of the arc-shaped water passing grille in a cross shape. The driving components are motors. The cutting component comprises a driving shaft and a driven shaft. The driving shaft and the driven shaft are in engagement transmission through gears. Teeth of each gear are milling cutters. Output shafts of the motors are connected with the driving shaft and drive the driving shaft to rotate. The anti-winding self-cleaning crusher has a self-cleaning function, water passing through the grilles is more unobstructed, and manual cleaning is not needed.

The invention discloses a power distribution cabinet, which comprises a cabinet body and an electrical element arranged in the cabinet body, wherein the cabinet body comprises a base, a top plate anda side plate located between the base and the top plate, the side plate is formed by splicing an upper side plate hinged with the top plate and a lower side plate connected with the base, a lifting mechanism used for lifting the top plate and a driving mechanism used for driving the top plate to rotate are arranged in the cabinet body, a first traction mechanism used for driving the upper side plate to turn over along the top plate is arranged below the top plate, and after the top plate rises and the upper side plate turns over inwards by a certain angle, and under rotation of the top plate,the upper side plate rotates to form air convection so as to dissipate heat of the electrical element. The power distribution cabinet is convenient to maintain and repair, rapid in heat dissipation and good in heat dissipation effect.

The invention relates to a fiber distribution frame. The fiber distribution frame is a frame used for fiber fusion. The fiber fusion in a casing of a conventional fiber distribution frame is realized by hanging the frame on fiber coiling discs through the fiber coiling discs arranged at upper positions and lower positions, such that when the tail fiber quantity is quite large, confusion of tail fibers is easily caused, repair and maintenance are not convenient, and the aesthetic beauty is reduced. The fiber distribution frame comprises a casing, the casing is separated into multiple vertical channels by multiple separator plates, each vertical channel is separated by separator plates into multiple tail fiber disc channels for placing tail fibers therein, and the tail fiber disc channels are internally provided with hangers and fixation clamps for fixing the tail fibers; and each separator plate is provided with through holes. According to the invention, the vertical channels are separated into the multiple tail fiber disc channels such that confusion of the tail fibers, caused by the large tail fiber amount can be avoided, the repair and the maintenance are facilitated, and the esthetic beauty is also high.

The invention discloses a water grass processing robot device. The water grass processing robot device comprises a vehicle body and a feeding table which is arranged at the right end of the vehicle body; a first cavity, a second cavity and a third cavity are formed in the vehicle body in sequence from top to bottom; the bottom of the second cavity is communicated with the top of the third cavity;a fourth cavity which extends up and down is formed in the rear end of the second cavity; a fifth cavity is formed in the front end of the second cavity; a first sliding guide groove which is of bilateral symmetry is formed in the inner wall of the top of the second cavity; an open groove is formed in the inner wall of the right end of the second cavity in a penetrating manner; a sixth cavity which is communicated with the open groove and opened upwards is formed in the feeding table; the left end of the third cavity penetrates through the end surface of the left end of the vehicle body; second sliding guide grooves which are positioned in the bottoms of the fourth cavity and the fifth cavity and are symmetric are formed in the front inner wall and the rear inner wall of the third cavity in a communicating manner. The water grass processing robot device is simple in structure, convenient to operate, convenient to accommodate, and convenient to move and transport; moreover, the water grass processing efficiency and effect are improved.

The invention discloses a heat dissipater for a new energy car. The heat dissipater comprises a shell, positioning seats are fixedly connected to the tops and the bottoms of the two sides of the shellcorrespondingly, one side of one of the positioning seats is fixedly connected with one side of the other positioning seat through a positioning frame, and an adjusting column is connected to the middle of an inner cavity of the positioning frame in a penetrating mode. The end, located on the outer surface of the positioning frame, of the adjusting column is fixedly connected with an adjusting handle, limiting seats are fixedly connected to the inner walls of the top and the bottom of the shell correspondingly, and the two limiting seats are fixedly connected through a device body. A heat dissipating plate is connected to the middle of an inner cavity of the device body in a penetrating mode, and the two ends of the heat dissipating plate are clamped to the inner sides of two clamping seats correspondingly. According to the heat dissipater for the new energy car, through cooperative using of the positioning seats, the positioning frame, the adjusting column and the adjusting handle, when a user needs to dismount and adjust the device body, by rotating the adjusting handle, the tightness of an adjusting plate can be adjusted, thus the adjusting plate and the shell are separated from each other, and the device body is more conveniently dismounted, repaired and maintained.

The invention relates to a novel telephone booth which comprises two arc-shaped plate pieces and base plates. The two arc-shaped plate pieces are arranged in a crossing mode, wherein the concave sides of the arc-shaped plate pieces are outward. Telephone installing bases are respectively arranged in the middle portions of the two arc-shaped plate pieces. The two base plates are respectively connected on the lower portions of the two arc-shaped plate pieces. Compared with the prior art, the novel telephone booth has the advantages of being concise in style, simple in structure, environment-friendly and the like.

The invention discloses a low-voltage switch cabinet capable of slowing down push-in. A pair of buffering left-right moving blocks which are distributed symmetrically in a left-and-right direction arearranged at the rear ends of the upper side wall and the lower side wall of a moving guide groove in a left-right sliding mode; buffering front-back moving blocks are arranged on the rear portion ofthe middle of the moving guide groove in a front-back elastic sliding mode; connecting rods are hinged to the ends, close to each other, of the buffering left-right moving blocks; the other ends of the connecting rods are hinged to the buffering front-back moving blocks respectively; a pair of side guide rods arranged in a bilateral symmetry mode and located at the lower side of a drawer body is formed on the rear end face of a drawer panel; fixing bolts penetrate through the drawer panel and the side guide rods from front to back and are connected to the drawer panel and the side guide rods in a threaded mode; a pair of front limiting threaded holes which are matched with the fixing bolts on corresponding sides and are through in a front-and-back direction is formed in a buffering supporting plate; and rear limiting threaded holes which are matched with the fixing bolts on corresponding sides and are through in a front-and-back direction is formed in the buffering left-right moving blocks.

The invention relates to the technical field of dust removers, in particular to a material receiving type dust remover, and aims to solve the problems that a dust remover in the prior art is inconvenient to maintain and overhaul, and dust is inconvenient to clean, the following scheme is provided: the material receiving type dust remover comprises a shell, an air inlet pipe is fixedly connected to the top of the shell, and a mounting box is fixedly connected to one side of the outer part of the shell; an exhaust fan is mounted on the mounting box, and a discharge pipe is fixedly connected to the top of the mounting box; the dust remover also comprises a filtering mechanism which comprises two side plates, two rotating plates mounted between the two side plates, a filter screen sleeving the two rotating plates, and three cleaning rollers mounted between the two side plates and matched with the filter screen. The dust remover is reasonable and stable in structure and easy to operate, the dust remover is convenient to disassemble and assemble and convenient to overhaul and maintain, the filter screen can be effectively self-cleaned and prevented from being blocked, dust stored on the inner side of the dust remover can be collected and cleaned, and the dust remover is easy to popularize and use.

The invention relates to a fixing mold of a punching machine. The fixing mold comprises an upper mold and a lower mold; the end of the upper mold is provided with a fixing workpiece; two ends of the fixing workpiece are provided with bolts and are fixed at the end of the upper mold through the bolts; a connecting rod is arranged between the upper mold and the lower mold; and a spring is arranged on the connecting rod. The fixing mold can fix the mold in a punching process, and is suitable for various types of workpieces, and convenient to repair and maintain in daily use, the service life of the mold is prolonged, and the production efficiency is improved.

The invention discloses mining equipment. The mining equipment comprises a body and an operating cavity formed in the body. A first sliding groove is formed in the inner wall of the rear end of the operating cavity in a connection mode, and a first accommodating cavity with an opening downwards and extending upwards and downwards is formed in the inner wall of the top of the operating cavity in aconnection mode. A second sliding groove located at the top of the operating cavity is formed in the left and right inner walls of the first accommodating cavity in a penetrating mode, and a second accommodating cavity located at the top of the first sliding groove is formed in the inner wall of the rear end of the first accommodating cavity in a connection mode. A waste liquid opening located directly below the first accommodating cavity is formed in the inner wall of the bottom of the operating cavity in a penetrating mode, and a discharge hole located at the left end of the waste liquid opening is formed in the inner wall of the bottom of the operating cavity in a penetrating mode. The mining equipment is simple in structure, convenient to operate, convenient to store and convenient tomove and transport, and also improves mining efficiency and effect.

The embodiment of the invention provides a bogie bilge plate assembly, a bogie and a railway vehicle, and the bogie bilge plate assembly comprises a bilge plate frame which extends in the length and width directions of the bogie and is used for being arranged below the bogie, at least one access door mounting hole defined by the bilge plate frame, and an access door arranged in the access door mounting hole; one side of the access door is rotationally connected with the bilge plate frame, and the other opposite side of the access door is locked and connected with the bilge plate frame through a locking mechanism. According to the bogie bilge plate assembly, the bogie and the railway vehicle, the bogie can be protected, gravel, particulate matter, sundries and the like on the ground are prevented from entering the bogie and colliding with pipelines, electric wires and other parts of the bogie, the service life of all the parts is prolonged, and the reliability and the running safety are improved. In addition, the bogie can be conveniently maintained and overhauled through the access door which can be opened and locked.

The invention provides an experimental three-dimensional total force measuring device and a measuring method. The experimental three-dimensional total force measuring device comprises a support frameand a hoisting structure on the support frame, wherein a fixed mount for a measured object is arranged at the bottom of the hoisting structure, the fixed mount is used for fixing the measured object,and the fixed mount is arranged under water; a six-component sensor is arranged on the hoisting structure, the six-component sensor is used for measuring the stress condition of the hoisting structure, and the six-component sensor is arranged above water; the signal output end of the six-component sensor is connected to a data collection instrument, and the data collection instrument is further connected to a computer. According to the experimental three-dimensional total force measuring device and the measuring method using water measurement provided by the invention, the service life of thesix-component sensor can be prolonged greatly; the device can be applicable for measured structures with different physical dimensions in laboratories; and the device is simple and beautiful in overall shape, high in strength, convenient in mount and dismount, low in cost and convenient in maintenance and repair.

The invention relates to the technical field of splicing mounting of combined screen systems, in particular to a turnover device and a combined screen system. The device comprises movable frames and fixed frames. The movable frames are hung on the fixed frames. Rotary shafts are arranged at the upper ends of the movable frames. Supporting parts for supporting the rotary shafts are arranged at the upper ends of the fixed frames. The movable frames are used for supporting display units, and the fixed frames are used for being fixed to an outer fixed object. According to the turnover device, maintenance personnel can rotate the display units relative to the fixed frames without assistance of any external tool, and therefore operation space is provided for the maintenance personnel, and later maintenance and repairing are convenient for the maintenance personnel.